=== Python 3.8.3 ===
#Сама функция:
def IsPalindrome(S: str) -> bool:
S = S.lower()
return S == ''.join(reversed(S))
#Пример вызова
def main():
S = input(
'Enter any word: (you can only use lower- and uppercase latin characters)\n')
print('YES' if (IsPalindrome(S)) else 'NO')
if __name__ == "__main__":
main()